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Keywords:

  • asymmetric synthesis;
  • bifunctional catalysis;
  • dienamines;
  • dihydropyrans;
  • organocatalysis
Thumbnail image of graphical abstract

Giving directions: Optically active dihydropyrans bearing three contiguous stereogenic centers can be efficiently prepared by the title reaction. High stereo- and regiocontrol can be achieved by employing a bifunctional H-bond-directing aminocatalyst.